Home / 491,216,531.36-677,938,255.68-279,574,819.60

Finding the Fourth Proportional to 491,216,531.36, 677,938,255.68 and 279,574,819.60

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Solution

The fourth proportional to 491,216,531.36, 677,938,255.68 and 279,574,819.60 is: 385,847,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,216,531.36 : 677,938,255.68 = 279,574,819.60 : x
  2. Step 2: Convert to fraction form
    491,216,531.36/677,938,255.68 = 279,574,819.60/x
  3. Step 3: Cross multiply
    491,216,531.36x = 677,938,255.68 × 279,574,819.60
  4. Step 4: Simplify right side
    491,216,531.36x = 189,534,465,531,674,688
  5. Step 5: Solve for x
    x = 189,534,465,531,674,688/491,216,531.36
  6. Step 6: Final answer
    x = 385,847,082.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.